Pith Number

pith:7EN26D2Z

pith:2014:7EN26D2ZAPBYQBFNC5IGVEAVJR

not attested not anchored not stored refs pending

Pseudo-Anosov mapping classes not arising from Penner's construction

Bal\'azs Strenner, Hyunshik Shin

arxiv:1410.6974 v3 · 2014-10-26 · math.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EN26D2ZAPBYQBFNC5IGVEAVJR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:22:21.656303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f91baf0f5903c38804ad17506a90154c52e2adbf1147bccfe1991554858ac87a

Aliases

arxiv: 1410.6974 · arxiv_version: 1410.6974v3 · doi: 10.48550/arxiv.1410.6974 · pith_short_12: 7EN26D2ZAPBY · pith_short_16: 7EN26D2ZAPBYQBFN · pith_short_8: 7EN26D2Z

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7EN26D2ZAPBYQBFNC5IGVEAVJR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f91baf0f5903c38804ad17506a90154c52e2adbf1147bccfe1991554858ac87a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9e4fab80fc84d51f5bdde6cc860e29eb207c0f825972f5e1b218b6118583cc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-10-26T00:24:56Z",
    "title_canon_sha256": "eaa18d93c688c30a480581df2e5942a5395ddd61df3aaa77cedbaa9868f1d334"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6974",
    "kind": "arxiv",
    "version": 3
  }
}